Multiple Choice
Identify the
choice that best completes the statement or answers the question.
|
|
|
1.
|
What type of bacteria breaks down dead plant and animal matter?
a. | pathogenic bacteria | c. | decomposer bacteria | b. | producer bacteria | d. | scavenger
bacteria |
|
|
|
2.
|
When bacteria reproduce by binary fission,
a. | two cells produce a third cell. | c. | one cell produces two
cells. | b. | two cells produce two more cells. | d. | one cell produces three or more
cells. |
|
|
|
3.
|
A way to prevent viral infections is through
a. | genetic engineering. | c. | antibiotics. | b. | bioremediation. | d. | vaccinations. |
|
|
|
4.
|
Which of the following is NOT true of bacteria?
a. | Bacteria change nitrogen into a form plants can use. | b. | Bacteria change
oxygen into nitrogen. | c. | Bacteria change the sugar in milk to lactic
acid. | d. | Bacteria change harmful chemicals into harmless ones. |
|
|
|
5.
|
What organisms can live where nothing else lives?
a. | viruses | c. | cyanobacteria | b. | bacteria | d. | archaea |
|
|
|
6.
|
All bacteria have
a. | one cell. | c. | three cells. | b. | two cells. | d. | four or more
cells. |
|
|
|
7.
|
Which of the following is NOT a shape of bacteria?
a. | crystal | c. | cocci | b. | spirilla | d. | bacilli |
|
|
|
8.
|
Which of the following is NOT a shape of viruses?
a. | crystal | c. | sphere | b. | spirilla | d. | cylinder |
|
|
|
9.
|
What is one function that viruses share with living things?
a. | They eat. | c. | They reproduce. | b. | They move. | d. | They grow. |
|
|
|
10.
|
Viruses reproduce by
a. | nitrogen fixation. | c. | the lytic cycle only. | b. | the lysogenic cycle
and the lytic cycle. | d. | binary
fission. |
|
|
|
11.
|
What is one way bacteria help the environment?
a. | They change oxygen to a form plants can use. | b. | They change nitrogen
to a form plants can use. | c. | They change oxygen into
nitrogen. | d. | They change nitrogen into oxygen. |
|
|
|
12.
|
What type of medicine is used to kill bacteria?
a. | antiviral | c. | vaccine | b. | insulin | d. | antibiotic |
|
|
|
13.
|
Which of the following is an example of bioremediation?
a. | using microorganisms to clean up an oil spill | b. | using bacteria to
make yogurt | c. | creating plants that are resistant to bacteria | d. | adding
nitrogen-fixing bacteria to the soil before planting crops |
|
|
|
14.
|
Which of the following is an example of genetic engineering?
a. | using microorganisms to clean up an oil spill | b. | using bacteria to
make yogurt | c. | creating plants that are resistant to bacteria | d. | adding
nitrogen-fixing bacteria to the soil before planting crops |
|
|
|
15.
|
A cell with no nucleus is called a(n)
a. | prokaryote. | c. | host. | b. | endospore. | d. | eukaryote. |
|
|
|
16.
|
Which of the following is NOT a true statement about binary fission?
a. | The cell’s DNA is copied before cell division. | b. | As the cell grows,
the loops of DNA become separated. | c. | The DNA and its copy attach to the inside of
the cell membrane. | d. | The new bacterium is genetically different from
the parent bacterium. |
|
|
|
17.
|
How do bacteria help the environment?
a. | Bacteria keep nitrogen away from plants. | c. | Bacteria cause
disease. | b. | Bacteria recycle dead animals and plants. | d. | Bacteria cause
cavities. |
|
Completion
Complete each
statement.
|
|
|
18.
|
Antibiotics can be used to kill many pathogenic bacteria, but they are useless
against _______________________.
|
|
|
19.
|
AIDS is caused by a(n) _______________________.
|
|
|
20.
|
Colds and flu are caused by _______________________.
|
|
|
Use the following terms to complete the sentences below.
| binary fission | endospores | | nitrogen fixation | lytic cycle | | |
|
|
|
21.
|
Viruses enter a living cell and use it to make more viruses in the
_____________________.
|
|
|
22.
|
Bacteria reproduce by _____________________.
|
|
|
23.
|
Genetic material from millions of years ago can survive in
_____________________.
|
Short Answer; Worth 2 pts each.
|
|
|
24.
|
Describe three ways that bacteria are helpful.
|
|
|
25.
|
How are prokaryotes different from eukaryotes?
|
|
|
26.
|
What are the three main types of archaea?
|
|
|
27.
|
If you were a scientist working with bacteria, what type of work would you want
to do? Explain why.
|
|
|
28.
|
If life existed on other planets, what type of organism do you think it would
most likely be?
|
Essay; PICK TWO QUESTIONS. Worth 4 pts extra credit for each
question. Answer in complete sentences for full credit. (8 pts extra credit
possible)
|
|
|
29.
|
Hypothesize why antibiotics can kill bacteria but do not kill viruses.
|
|
|
30.
|
If you were a scientist, would you prefer to work with helpful bacteria or
harmful bacteria? Explain your answer.
|
|
|
31.
|
Imagine you are the director of the Bacteria Institute. What could be the
purpose of your organization and what would the people working at your organization do?
|
|
|
32.
|
Imagine you are having a conversation with a person who has never heard of
viruses. Explain what you would tell them about the importance of preventing infections from
viruses.
|